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Fix spurious 零 after a group's trailing zeros in Chinese numerals (#3745)

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Found while testing crates/doc/src/cjk_numbers.rs:47-55 (Counting::format)

Co-authored-by: Claude Haiku 5.5 <noreply@anthropic.com>
This commit is contained in:
NetterSilver
2026-10-23 10:31:48 -04:00
committed by GitHub
co-authored by Claude Haiku 5.5
parent 66ff2afc4d
commit 32f8e2c2ad
1 changed files with 13 additions and 0 deletions
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crates/doc/src/cjk_numbers.rs
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@@ -74,6 +74,8 @@ impl Counting {
out.push(u);
}
}
// Trailing zeros of a group are not a gap: the next group starts a new place.
zero_pending = false;
match gi {
0 => out.extend(self.myriads.get(1)),
1 => out.extend(self.myriads.first()),
@@ -324,6 +326,17 @@ pub(crate) fn chosung(n: u32) -> String {
mod tests {
use super::*;
#[test]
fn chinese_no_zero_after_group_trailing_zeros() {
assert_eq!(chinese_counting_thousand(201_000), "二十万一千");
assert_eq!(chinese_counting_thousand(120_000), "十二万");
assert_eq!(chinese_counting_thousand(100_100), "十万零一百");
assert_eq!(taiwanese_counting_thousand(201_000), "二十萬一千");
assert_eq!(chinese_counting_thousand(100_000_001), "一亿零一");
assert_eq!(chinese_counting_thousand(100_010_000), "一亿零一万");
assert_eq!(chinese_counting_thousand(120_000_001), "一亿二千万零一");
}
#[test]
fn chinese_counting_systems() {
let c = |n| chinese_counting(n);